Location for main electrical panels in new construction

[TronPlayer]

Hi, I have a general question about main panel locations. The house is 120' long so I was contemplating running 2x 200amp panels located on the exterior of the house as marked in the attached photo. The main service and meter is on a pole outside. I had planned on running a trench from the main panel to the pole and feed the sub panel from the main. Alternately, I was contemplating running one or both panels on interior walls and run conduit through the slab. What are the positives and negatives of doing this? Thanks.